APA (7th ed.) Citation

Combs, C. C., & Combs, C. C. (2003). Terrorism in the twenty-first century (3. ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Combs, Cynthia C., and Cindy C. Combs. Terrorism in the Twenty-first Century. 3. ed. Upper Saddle River, N.J: Prentice Hall, 2003.

MLA (8th ed.) Citation

Combs, Cynthia C., and Cindy C. Combs. Terrorism in the Twenty-first Century. 3. ed. Prentice Hall, 2003.